Wooden spring



Nov. 28, 1944. 1., A. DAUGHERTY WO DEN SPRING Filed Jan. 29, 1943,

l with my invention. t Figure 2 is a view similarto Figure .1 showingthe piece of wood after being cut in accordance Patented Nov. 28, 1944 3.UNITED STATES PATENT OFFICE 1 i 2,363,837 WOODEN SPRING Lucius A.Daugherty, Norfolk, Va.

Application January 29, 1943, Serial No. 473,994 1Claim. (c1.5 255) Thisinvention relates to a wooden spring, and

- hasfor the primary object the provision of a device of this characterwhich will provide an efficient and economical substitute for a metallicspring and is especially suitablefor use in all types of furnitureheretofore employing metallic springs and also maybe utilized for otherpurposes than that specified.

Another object of this invention is the provision of i a woodenspringconstruction which may be substantially made from a single pieceof wood 3 cut on lines of a pattern laid out on one face of the piece ofwood and with the addition of wooden wedges will be made to haveresiliency substantially equal to the resiliency of metallic springsused for like purposes. i

With these and other objectsin view, as will become more apparent asthedescription proceeds,

the invention consists in certain novel features of construction,combination and arrangement of parts as will be hereinafter more fullyde scribed and claimed.

For a complete understanding of my invenbers ,6 and l. The free ends ofthe members 6 and l are of an increased thickness to form rests 10, therests ID of the upper member 6 being opposed to the rests lllof thelower member I. This construction of wooden spring will per.-

mit the grouping of a plurality ofsuch springs, L as shown in Figure 4,to form a bed spring construction or a spring foundation for chairs andother pieces of furniture. It will be noted in the grouping of thesprings, as shown in Figure 4,

that groups of such springs parallel one another with their endsengaging other similarly constructed springs arranged at right anglesthereto. A wooden spring of the construction described and shown in,Figure 3 can be economically and easily made from a single pieceof woodthat is.

of elongated formation and of substantially rection, reference is to behad to the following del ,scription and accompanying drawing, in whichFigure. 1 is .a side elevationillustrating a sin gle piece of woodhaving laid out on one face thereof a pattern on which said piece ofwood is spring in accordance out in the formation of a pleted springmade in accordance with the present invention.

Figure 4 is a fragmentary perspective view i1- lustrating a series ofsprings made in accordance with the present invention grouped in theconstruction of a bed spring or some other similar cushioning device.

Referring in detail to the drawing, the numeral 3 5 indicates as'anentiretya wooden spring consisting of upper and lower members 6 and!arranged in parallel spaced relation and connected 4 .claim is:

tangular shape in cross section. Such a piece of wood is illustrated inFigure 1 and one face thereof has applied thereto line markings A inaccordance with a selected pattern. .Thestrip of i wood is then cut onthe line markings from both ends thereof, as shown in Figure2, formingthe flexible strip as well as the upper and lower members of the spring.Afterthe pieceof wood has been cut,as shown in Figure 2, wooden wedges 9are driven into'the kerfs or cuts and come to test where themembers andstrips are joined with one another causing the members 6 and 1 andstrips to assume a spread formation, as shown in Figure 3, therebyproviding to the device a very desirable resiliency.

While Ihave shown and described the preferred embodiment of myinvention, it will be understood that minor changes in construction,

of the invention as claimed.

Having thus described my invention, what I In a wooden spring, spacedparallel wood members having the ends thereof enlarged to by a series offlexible strips 8 arranged in superimposed relation and integrallyconnected with each other and with said upper and lowerstrips or members6 and I. The flexible strips 8 provide desirable cushioning effectbetween the upperand lower members 6 and 1 and by referring .to Figure 3it will be seen that the flexible strips are spreadfrom each other andfrom the members 6 and 1 by' wedges 9. Also it will be noted -5 arrangedinwardly of the free ends of the mem- 1 that the connected ends of theflexible strips are form rests projecting laterally thereof and they.rests of onememberppposing the rests of the other member, elongatedflexible wooden strips groupedbetween said membersterminatinglongitudinallyinwardly of said rests and each having an end thereofintegrally connected with the strip adjacent thereto and the stripsadjacent said members being integrally connected with said members, andwedges located between the strips and between the members and the stripsad acent thereto, thewide ends of the wedges at the respective ends ofthe members terminating in acommon vertical plane.

LUCIUS A. DAUGHERTY. 1

